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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5830) HostUtil.getTaskLogUrl is not backwards binary compatible with 2.3
Date Fri, 20 Jun 2014 18:37:29 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039159#comment-14039159
] 

Hudson commented on MAPREDUCE-5830:
-----------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #5743 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/5743/])
MAPREDUCE-5830. Added back the private API HostUtil.getTaskLogUrl(..) for binary compatibility
with older clients like Hive 0.13. Contributed by Akira Ajisaka. (vinodkv: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1604230)
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/util/HostUtil.java


> HostUtil.getTaskLogUrl is not backwards binary compatible with 2.3
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-5830
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5830
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>    Affects Versions: 2.4.0
>            Reporter: Jason Lowe
>            Assignee: Akira AJISAKA
>            Priority: Blocker
>             Fix For: 2.4.1
>
>         Attachments: MAPREDUCE-5830.patch
>
>
> HostUtil.getTaskLogUrl used to have a signature like this in Hadoop 2.3.0 and earlier:
> public static String getTaskLogUrl(String taskTrackerHostName, String httpPort, String
taskAttemptID)
> but now has a signature like this:
> public static String getTaskLogUrl(String scheme, String taskTrackerHostName, String
httpPort, String taskAttemptID)
> This breaks source and binary backwards-compatibility.  MapReduce and Hive both have
references to this, so their jars compiled against 2.3 or earlier do not work on 2.4.



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